JOHNSON CONTROLS
7
FORM 150.72-ICOM6
ISSUE DATE: 08/03/2022
TABLE OF CONTENTS (CONT’D)
SECTION 9 – SERVICE AND TROUBLESHOOTING .....................................................................................185
Clearing History Buffers................................................................................................................................185
Resetting System Lockout Faults ................................................................................................................. 185
Service Mode ...............................................................................................................................................185
Service Mode – Outputs ............................................................................................................................... 185
Service Mode – Chiller Configuration ........................................................................................................... 186
Service Mode – Analog and Digital Inputs ....................................................................................................186
Control Inputs/Outputs .................................................................................................................................187
Checking Inputs and Outputs .......................................................................................................................189
Optional Printer Installation ..........................................................................................................................195
Troubleshooting ............................................................................................................................................ 197
SECTION 10 – MAINTENANCE .........................................................................................................................199
Compressors ................................................................................................................................................199
Condenser Fan Motors .................................................................................................................................199
Condenser MCHX Cleaning .........................................................................................................................199
Operating Parameters ..................................................................................................................................201
On-Board Battery Backup ............................................................................................................................203
Thermal Dispersion Flow Switch ..................................................................................................................203
Brazed Plate Heat Exchanger (Evaporator) Heater .....................................................................................203
Overall Unit Inspection .................................................................................................................................203
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